SU0011836 - Laserfiche WebLink

Home Browse Search

• • Draft Supplemental Environmental Impact Report Page IV.0-5 • Forward Inc. Landfill 2018 Expansion Project • • At least three residences are along Austin Road, between Arch Road and the project driveway, • the closest of which is approximately 70 feet from the road centerline; • • Two residences are along Austin Road, south of the project driveway, the closest of which is • approximately 110 feet east of the road centerline; • • At least eight residences are along French Camp Road, west of Austin Road, the closest of • which is approximately 50 feet from the road centerline; • • At least ten residences are along French Camp Road, east of Austin Road, the closest of which is • approximately 80 feet from the road centerline; and • • California Health Care Facility, west of Austin Road. The facility is approximately 280 feet • from the road centerline and 2,500 feet northwest of the northeast expansion area. • A residential structure (9690 Austin Road) is also along Austin Road approximately 1,300 feet south- • southeast of the northeast expansion area. It is directly east of the Forward Landfill main entrance. • However, this structure is currently vacant and lacking electricity and plumbing, and so cannot be • occupied at this time. • Impacts • Impact significance under CEQA is evaluated relative to the existing environment. For the purposes of • this analysis,the"existing noise environment"is the current noise environment,which includes the • existing operational conditions at the landfill(i.e., approximately 233 trucks per day). This section • includes a summary of impacts and mitigations considered in the 2013 EIR, and has been updated to • include impacts and mitigations that are new or have been substantially altered by changes in the proposed project. To facilitate review of the section and comparison of analyses between the 2013 EIR • and this document, the heading for each impact or mitigation measure reflects whether that impact is • the same, revised, replaced, or new. • Standards of Significance • Under ambient conditions, most people cannot distinguish a change in the noise environment that • differs by less than 3 dBA between the pre- and post-project exposure. A clearly perceptible increase in • noise level differences occurs around +5 dBA. The operational noise impact studies prepared for the • 1993, 1994, 2000, and 2002 EIRs for the Forward and Austin Road landfills adopted a+5 dBA increase as a significant noise impact. Subsequent to those studies, ambient levels in the area have increased. • For the purposes of this analysis, the noise impact from any new landfill traffic would be potentially • significant if it would increase exterior noise levels by at least 5 dBA or more at any of the nearby • residential land uses that are currently at or below the County's maximum allowable Ldn noise exposure level of 65 dBA for transportation sources (see Table IV.0-2). • • • • • • • • • •